{"id":"CVE-2023-27599","summary":"OpenSIPS has vulnerability in the parse_to_param() function","details":"OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, when the function `append_hf` handles a SIP message with a malformed To header, a call to the function `abort()` is performed, resulting in a crash. This is due to the following check in `data_lump.c:399` in the function `anchor_lump`. An attacker abusing this vulnerability will crash OpenSIPS leading to Denial of Service. It affects configurations containing functions that make use of the affected code, such as the function `append_hf`. This issue has been fixed in versions 3.1.7 and 3.2.4.","aliases":["GHSA-qvj2-vqrg-f5jx"],"modified":"2026-05-18T05:55:53.760877253Z","published":"2023-03-15T20:58:06.736Z","database_specific":{"cwe_ids":["CWE-20"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27599.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27599.json"},{"type":"ADVISORY","url":"https://github.com/OpenSIPS/opensips/security/advisories/GHSA-qvj2-vqrg-f5jx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27599"},{"type":"FIX","url":"https://github.com/OpenSIPS/opensips/commit/cb56694d290530ac308f44b453c18120b1c1109d"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opensips/opensips","events":[{"introduced":"1e94abe8837fe3511fada132d67a6385d8d099a2"},{"fixed":"50407d34067f0e80765617c3bace78639e380d5a"}]}],"versions":["3.2.3","3.2.2","3.2.1","3.2.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-27599.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}